Commit cbf5d9e6 authored Oct 03, 2007 by Roland Dreier Committed by Greg Kroah-Hartman Oct 12, 2007

MSI: Use correct data offset for 32-bit MSI in read_msi_msg()



While reading the MSI code trying to find a reason why MSI wouldn't
work for devices that have a 32-bit MSI address capability, I noticed
that read_msi_msg() seems to read the message data from the wrong
offset in this case.

Signed-off-by: Roland Dreier <roland@digitalvampire.org>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

parent a56bc69a

drivers/pci/msi.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -132,7 +132,7 @@ void read_msi_msg(unsigned int irq, struct msi_msg *msg)
		pci_read_config_word(dev, msi_data_reg(pos, 1), &data);
		} else {
		msg->address_hi = 0;
		pci_read_config_word(dev, msi_data_reg(pos, 1), &data);
		pci_read_config_word(dev, msi_data_reg(pos, 0), &data);
		}
		msg->data = data;
		break;

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